* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
:root {
    --clr: #ff3136;
}
body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: var(--clr);
}
.box {
    position: relative;
    width: 320px;
    height: 450px;
    background: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}
.box h2 {
    font-size: 10em;
    font-weight: 800;
    color: transparent;
    -webkit-text-stroke: 4px var(--clr);
    z-index: 10;
}
.box::before {
    content: '';
    position: absolute;
    top: -40px;
    left: -40px;
    width: 80px;
    height: 80px;
    background: var(--clr);
    border-radius: 50%;
    box-shadow: 320px 0 0 var(--clr),
    320px 450px 0 var(--clr),
    0px 450px 0 var(--clr);
    z-index: 11;
}
.box::after{
    content: '';
    position: absolute;
    inset: 20px;
    border: 4px solid var(--clr);
}
.box span {
    position: absolute;
    width: 80px;
    height: 80px;
    background: #fff;
    border: 4px solid transparent;
    border-right: 4px solid var(--clr);
    border-radius: 50%;
    z-index: 10;
}
.box span:nth-child(1) {
    top: -20px;
    left: -20px;
    transform: rotate(45deg);
}
.box span:nth-child(2) {
    top: -20px;
    right: -20px;
    transform: rotate(135deg);
}
.box span:nth-child(3) {
    bottom: -20px;
    right: -20px;
    transform: rotate(225deg);
}
.box span:nth-child(4) {
    bottom: -20px;
    left: -20px;
    transform: rotate(315deg);
}